• EN
  • DE
Skip to content
Grimm Audio
  • Home
  • Blog-zine
  • Hifi Products
  • Pro Products
  • About us
    • About us
    • Our Story
    • Who is Who
  • Contact
    • Contact
    • Hifi Sales
    • Pro Sales
Blog-zine / Reviews / Ukiro Music: LS1c shatters the glass ceiling

Ukiro Music: LS1c shatters the glass ceiling

March 28, 2026

In the past months Ola Björling achieved great succes with his Ukiro Music Youtube channel. Recently he published a series of active loudspeaker reviews and since Ola loves our MU2 so much he was eager to check out the LS1c with SB1 subs and MU1 source. He soon got deeply impressed by the amazing resolution of this system. So he invited Eelco Grimm for a (long) video interview. Together, they delved deep into the backgrounds of the LS1c design and of other Grimm Audio products. Please enjoy the review in this video and the interview here. Some excerpts of the review are copied below.

“The Grimm LS1c’s are in many ways an assault on compromise, an effort to do away with as many performance glass ceilings as research and engineering allows. (…)

There is a degree of resolution here, not artificial sharpening and not spectral tilt and not distortions masquerading as texture, but true sonic information from the recording that makes me think of like videos of kids getting corrective glasses that lets them see their parents clearly for the first time. (…)

The reverb retrieval is exponentially better than anything else I have ever heard. Yes, that is a bold sentence, but I stand by it. It’s not just like the amount and the length of reverb, but its color and texture and dimensionality. It’s like an entirely new layer of the music has been made available. (…)

A different but related quality is that some records that I had mentally flagged as a bit dull and uninteresting suddenly showed a lot more nuance than I knew was there. Wa Wu We’s “108 dimensions of green”, went from “I should not have bought this” to “I can’t wait to play it again and again”. (…)

This incredible detail retrieval carries over to low-volume performance, as you would expect, which has made me listen at quieter levels with these than in a very long time. It is truly incredible to experience how much detail and clarity remains, even at like 45-50dB listening levels. (…)

After reviewing bass-competent speakers previously, I braced for a thin and compromised lower octave here, but the LS1c’s as two-ways on their own is almost shockingly viable as a complete system. (…)

But when the recording quality, the playback level and the frequency depth all line up, the bass with the SB1 subs is by a considerable margin the cleanest I have ever heard. I was genuinely not aware that bass could sound this clean and non-boomy in a regular room. (…)

The thing about these is that the glass ceiling of performance potential isn’t just lifted, it’s shattered. It’s gone. (…)

With the very best recordings, something happens here that I don’t quite know how I can go through the rest of my life not having access to. I’ve only had this feeling once before in my life, and that’s when I got into high-end in the first place.”

Read about LS1c >

“The thing about these is that the glass ceiling of performance potential isn’t just lifted, it’s shattered. It’s gone.” – Ola Björling, Ukiro Music, Sweden.

Watch the interview of Ola Björling with Eelco Grimm

Read more about: Reviews · Video & Audio · Hifi · Grimm MU1 · Interview · Grimm LS1c
Share this on:

More for you

Robert Harley: Axpona’s Best Sound Award

As usual, the press covered the large shows in the US and Canada extensively and they also visited our demo rooms. We love to share a few stories with you. At the Axpona show, Robert Harley of The Absolute Sound and Michael Lavorgna of Twittering Machines by coincidence set side by side when Eelco Grimmread more >

April 24, 2026

Grimm Audio at Axpona 2026

We exhibit at the well known Axpona High End Audio Show in Chicago, April 10-12. Eelco Grimm and our sales director North America John-Paul Lizars will make sure you get a great demo in room 1530. Experience the elegance and unparalleled performance of the LS1c digitally controlled loudspeaker with SB1 motion feedback subwoofer and MU1read more >

April 5, 2026

Grimm Audio at Montreal Audiofest 2026

We team up with our Montreal dealer Lemay Audio to present our products at the great Montreal Audiofest show on March 20-22. Grimm Audio’s sales director North America John-Paul Lizars welcomes you to a wonderful demo of our active LS1c, SB1 and MU1 system. And in a second demo room the MU2 and PW1 takeread more >

March 17, 2026

All news & reviews >

It was more real. Basta.

Bart, Audio Afficionado (MU1)
▲Back to the top
Grimm Audio
  • Shop
  • •
  • Dealers
  • •
  • Support
  • •
  • Contact
Designed & made in the Netherlands

Designed & made in the Netherlands

Receive a present

Sign up, stay up to date and receive a present that aids to tune your bass sound.